Craft knife for cutting circles
Description
Claims
The ornamental design for a craft knife for cutting circles, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- Olfa 45mm Quick Blade Rotary Cutter. Downloaded Feb. 26, 2010 at http://www.pelennapatchworks.co.uk/olfa-45mm-quick-blade-rotary-cutter-1534-p.asp.
Patent History
Patent number: D633771
Type: Grant
Filed: Apr 17, 2009
Date of Patent: Mar 8, 2011
Inventor: Pi-Chao Chang (Taichung County)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/311,542
Type: Grant
Filed: Apr 17, 2009
Date of Patent: Mar 8, 2011
Inventor: Pi-Chao Chang (Taichung County)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/311,542
Classifications
Current U.S. Class:
D8/98